| Value | Category | Cases | |
|---|---|---|---|
| 1 | most of them | 490 |
13.7%
|
| 2 | about half of them | 402 |
11.2%
|
| 3 | some of them | 1282 |
35.8%
|
| 4 | none of them | 1406 |
39.3%
|
| Sysmiss | 117 |